Grain drill depth adjustment tool



FIG. 1 shows a front perspective view of a grain drill depth adjustment tool.

FIG. 2 shows a back perspective view thereof.

FIG. 3 shows a top view thereof.

FIG. 4 shows a bottom view thereof.

FIG. 5 shows a right side view thereof.

FIG. 6 shows a left side view thereof.

FIG. 7 shows a front elevational view thereof; and,

FIG. 8 shows a back elevational view thereof. 

The ornamental design for a grain drill depth adjustment tool, as shown and described. 